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January 15, 2022, 04:20 PM | #26 |
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I would think twice about that last load data. 1991 is getting pretty old. The factories making the powders and the exact processes and quality controls have changed since then. Accurate's own data from their first manual (1994) has 44 Special loads for №5, №7, and №9 listed. By the time you get to their third manual, the №9 data is gone. By the time you get to their sixth manual, №7 has disappeared. I think that is the company learning from experience. Neither Hornady nor Hodgdon (the current Accurate distributor) list anything for 44 Special using №7 or №9 now. You want to validate data that age very carefully before relying on it.
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January 15, 2022, 04:38 PM | #27 |
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Yes the data is old etc. etc. but it is also being loaded into a rifle rated for 44 Magnum (36kpsi) vs. the 44 Special data (15.5kpsi). There is so much overhead in the pressure department for the OP's purposes that I posted the data AND the source. Previous posts have noted the 44 Special going magnum that it was fair game. Go ahead and run the numbers in QL and tell us how with the St. Marks powder that this data will be into 44 Mag. Pressures.
For what it is worth I have used #7 from Israel (original), Czech, RSA, & St. Marks. The St. Marks has burned differently but it still works within the burn curve for the type. I've not had to significantly adjust my documented loads for this powder. |
January 15, 2022, 04:51 PM | #28 |
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I understand your point, but we don't know №7 and №9 were dropped from the load data for high-pressure issues. It could be a squibbing problem at 44 Special pressures, just like you see with H110/296 underloads leaving a bullet stuck in the barrel, inviting the next round to damage the gun. I'd want to know the manufacturers weren't seeing that sort of issue when they dropped these loads. I'd be using a pressure gun or watching for large velocity swings if I needed to vet them with current lots of powder.
Now, citing 44 Magnum loads with those powders would be just fine. These are operating at higher pressures that make slower powders burn more consistently and that may be why loads are still published for them and not for the Special. I just don't know, so I am urging a bit of caution.
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January 15, 2022, 06:02 PM | #29 | |
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I have loaded #7 in 9mm. It was too slow with 115g, and a 4in barrel but provided reasonable velocities with 124g bullets, 7.6g, at 1092fps. I will try and contact Hornady Tuesday and see if they can provide more information as to why it was no longer included in the manuals.
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January 21, 2022, 03:48 PM | #30 |
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CAUTION: The following post (or a page linked to) includes or discusses loading data not covered by currently published sources of tested data for this cartridge (QuickLOAD or Gordon's Reloading Tool data is not professionally tested). USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assumes any liability for any damage or injury resulting from the use of this information.
So I got out to do some more testing today, despite it being 18F out.... re-tested the power pistol with new primers and tested some of the sierra H110 loads Henry 20in rifle 44spl Starline brass Hornady 240g XTP CCI #300 large pistol primers with Power Pistol Winchester large pistol, marked for standard or magnum loads, with H110 chronograph 3 paces, or approximately 9ft away 5 rounds of each fired, vs 3 last time, 3 was just not enough data Power Pistol (Note: Max listed charge from my manuals was 7.6) 6.6, AVG 801, SD 28.38, ES 75 7.1, AVG 867, SD 38.68, ES 94 7.6, AVG 939, SD 31.55, ES 73 8.1, AVG 1034, SD 15.37, ES 36 H110 13.4, AVG 712, SD 30.08, ES 67 13.8, AVG 806, SD 16.48, ES 39 14.3, AVG 875, SD 48.93, ES 108 14.8, AVG 921, SD 33.02, ES 93 Over all notes Power pistol seems to be performing well in this long barrel. With the first 3 charges there were no pressure signs on the primers. looked like new except for the dimple. With the the 8.1g charge there was some minimal flattening of the primers but noting else. The 8.1g load got me in the velocity range I was looking for and the ES and SD dropped down. With this being a 44mag chambered rifle I am comfortable being touch over max. H110 was disappointing. With as much powder and the slow burn rate I hoped it would do well in the longer barrel. Primers all looked good. mild flattening with all loads, but that it more typical of the winchester primers in my experience. Almost all the cases were dirty and sooty on the outside, which to me indicates low pressures and a bad burn.
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January 21, 2022, 05:24 PM | #31 | ||
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Quote:
{Edit to remove copyrighted materials: Please read the board policy on posting copyrighted materials} Second, Hornady shows a max load of 6.8 grains of PP behind a 240-grain bullet. What do you thing your actual pressure is? Quote:
https://www.24hourcampfire.com/ubbth...g#Post13673133 You come here for advice, and then ignore much of it…. .
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January 21, 2022, 06:36 PM | #32 |
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TX Nimrod
First, while primer appearance is indeed poor way to judge, it is also one of the few ways I do have to judge. You have to work with what you have. And this case I was able to see a discernable difference between the first 3 and last load. Second for 240jhp in 44spl with power pistol Hornady Max 6.8 Winchester large pistol hornady brass Alliant 7.6 CCI 300 primer Large Pistol remington brass Alliant 7.0 federal 150 primer large pistol federal brass http://www.alliantpowder.com/reloade...8&cartridge=32 Alliant uses speer JHP, which in 240g, all have a similar profile and crimp location compared to the hornady XTP. Also I am using starline brass which is not listed in any of the loads listed, and is of equal or better quality than any listed last I checked. So in regards to my initial load workup, I was and am within published load data. I also put the disclaimer and notes in red on this last batch of testing as I exceeded published data. Third, as already stated, these are being fired in a 44mag/44spl lever gun. So even if these are a touch over pressure they are still well within the limits of the firearm. I do not have any 44spl chambered pistols to be concerned with mixing the loads, and I do not share my reloads. Fourth, I expected H110 to perform poorly. That does not mean I can't try it. The load data was for a 5.6in pistol, and I was curious to see how it would perform in a rifle. It was slower than the listed pistol data. While not in a cartridge with optimal pressure, I anticipated it might exceed the listed pistol data with the slower powder in the long barrel, but it was below it, thus I was disappointed. Lastly, I came to share what I was working on and the odd results I got. I got some advice along the way as usual and as usual most of it was on point. I by no means ignored the advice given, I simply decided I wanted to try something to see what the results were in my specific setup and factored that into my expectations. See the fourth section. P.S. Don't get yourself in trouble publishing copyrighted photos
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I don't believe in "range fodder" that is why I reload. Last edited by Shadow9mm; January 21, 2022 at 06:54 PM. |
January 22, 2022, 11:28 AM | #33 |
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Many lever action rifles are picky about OAL when it comes to feeding reliably. I would try using some 44 Russian brass and Unique powder in your lever gun for reliability and accuracy.
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January 22, 2022, 12:00 PM | #34 |
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Shadow9mm,
For the safety of others reading this thread, I need to point out your H110 loads were in the range recommended for the 357 Mag case with 170-180-grain bullets. In the 44 Special cases, they are well into the range the factory warns not to reduce loads to with this type of powder for the reason I gave in post #24. A rule of thumb with this powder (and 296, its other name) is any load below about 88% loading density will be at risk. In this instance, with the XTP bullet at a COL of 1.480" (Hodgdon's test COL for it in 44 Special), a minimum safe load of H110 will be about 20 grains. Hodgdon lists 23 grains as the published minimum with 1.600" COL in the 44 Magnum case.
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January 22, 2022, 01:49 PM | #35 | |
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When loading I did some basic rough measurements and I had approximately 0.211 to 0.290 remaining between the powder and bullet at start and max. What do you mean by minimum safe? Is that minimum for an effective burn. Or that there is risk of a squib or detonation? A friend of mine is running some higher charges in h110, that I believe are below the 20g mark, and has had some case head separations. However thry have only been in his 44 henry. But not in his Blackhawk. While I agree the loads seem light, I pulled them straight from sierras manual and used the brass. Powder, and primer specifically listed. Only thing different was the bullet, but it was the same weight with a similar profile and crimp location. If it was unsafe why would sierra list it? Not trying to argue with you, just trying to understand.
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I don't believe in "range fodder" that is why I reload. Last edited by Shadow9mm; January 22, 2022 at 02:30 PM. |
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January 22, 2022, 06:04 PM | #36 |
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The issue is the squibbing problem. The powder was first introduced by Hodgdon as H110 and then a year or two later by Winchester as 296. Both had magnum loads for it and no 44 or 38 Special loads using it. The factor for ignition is loading density, which is the percent of empty space under the seated bullet that the powder takes up in the case. None of Hodgdon's or Winchester's recommended loads has the space filled less than about 88%, and then Hodgdon says you can further reduce the loads by no more than 3%, putting it at actually about 85% loading density as a minimum. With the Hornady XTP seated to 1.480" COL in the 44 Special case, assuming a case water overflow capacity of the case is 36 grains of water, you have about 26 grains of water capacity under the seated bullet, and with the powder density at 0.92 grams/cc, it takes about 20.5 grains of powder to fill 85% of that available space. Below that, the powder distributors seem to get alarmed.
So, I am surprised Sierra has that 60-70% loading density data in their book. You could contact Hodgdon and ask what they think of it. All I know is that it's a level that would concern them in the matter of squibs. I don't think the squibs happen often, so Sierra may have just decided to try it out without considering the issue Hodgdon and Winchester had with it and then just didn't have a problem happen to occur during their testing. The biggest danger, of course, is someone doing fast DA revolver shooting who is working the trigger so quickly their reflexes can't stop them from firing the next shot when they notice one wasn't right. But I've never seen any published information on how frequently the squib issue is thought to happen, so I don't know what the odds are.
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January 22, 2022, 06:48 PM | #37 |
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Yawn and I do mean that to "Staff". You missed the ship AND what I was alluding to.
The data that I posted was book AND component aligned; Speer #12also details AA#7 laods for 44 Special. H110 loads are pure garbage. That powder doesn't down load for squat. Take the top end of #7 as a starting point.....look at 44 mag. Start as your end point. If you have been into reloading for as many years as you say then you should understand what I am telling you. Last edited by SHR970; January 22, 2022 at 06:56 PM. |
January 22, 2022, 07:19 PM | #38 |
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I'm working on it, I'm working on it.... I have to reload at the kitchen table, so I can't always reload when I want to. I also just got finished processing the 1000pcs of once fired I bought, 500 44spl, and 500 44mag. Been busy . Hoping to test some #7 in the next outing or 2. Right now Power pistol is performing exceptionally well. Got 1 more session to do some fine tuning. and hopefully play with some other powders. Going to push CFE pistol some more as well. It seemed like it was trying to burn well up at max.
really need to get QL and learn how to use it. Tried GRT a few years back, I was not impressed. I'm downloading it again, maybe it will work better for me with straight wall stuff.
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I don't believe in "range fodder" that is why I reload. Last edited by Shadow9mm; January 22, 2022 at 07:28 PM. |
January 22, 2022, 07:58 PM | #39 |
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SHR970,
You posted about the pressure overhead room available, but on rereading I see no allusions to any other consideration. My point was that the powders in the old data may have ceased appearing in 44 Special load manual data for reasons having nothing direct to do with the peak pressures normally seen with them. This happens a bit mysteriously at times. For example, Blue Dot was loaded in magnum revolvers without unusual restrictions for decades, and then suddenly Alliant publishes a warning not to use it with 125-grain bullets in 357 Mag and not with any bullet weight in 41 Mag. What happened after decades of it being OK as far as anybody knew? I don't know. I asked their people at the Atlanta NRA annual meeting gun show and they sort of looked uncomfortable and refused to explain and just repeated the warning. Clearly, they'd been instructed not to answer questions about it. Whatever the cause, and as little sense it seems to make to those of us who used the powder successfully in those very applications in the past, I respect their warning because I don't want to rediscover the reason for it on my own. But it also means a lot of previously published book data from Alliant and Lyman and others is now invalid and considered dangerous by Alliant. So, again, my concern is to suggest caution with old data combinations that the people testing loads for manuals have dropped, unless you learn directly from them that the combinations were dropped for innocuous reasons. If there is any issue that has been uncovered with #7 in 44 Special, the question is, at what load level below 44 Mag does it start to appear? And maybe there's nothing. We can try asking. We can certainly agree about H110, and Shadow9mm has confirmed it for himself.
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January 22, 2022, 08:49 PM | #40 |
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CAUTION: The following post (or a page linked to) includes or discusses loading data not covered by currently published sources of tested data for this cartridge (QuickLOAD or Gordon's Reloading Tool data is not professionally tested). USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assumes any liability for any damage or injury resulting from the use of this information.
so I just finished my download of gordon's reloading tool. I know its not as good as Quickload, and neither are definite. I ran the H110 in the simulation as well as the #7 with both powders it gave me a warning "Low burn rate! inconsistent combustion and increased error rate of simulation very likely." H110 13.4 projected 1161fps at 7889psi, Actual 712fps 13.8 projected 1204fps, at 8450psi, Actual 806 14.3 projected 1228fps, at 9049PSI, Actual 875fps 14.8 projected 1254fps, at 9678 psi, Actual 921fps #7 8.0 projected 2052fps at 6082 psi 8.2 projected 1064fps at 6317psi 8.7 projected 1093fps at 6932psi 9.2 projected 1124fps at 7623psi for #7 it states that at 7.0g the charge is too small and at 12.5 is states I am close to max working pressure at a projected 13704psi I also ran this against my power pistol testing. Power Pistol 6.6 Projected 1068fps @ 8224psi / Actual 801fps 7.1 Projected 1107fps @ 9288psi / Actual 867fps 7.6 Projected 1148fps @ 10441psi / Actual 939fps 8.1 Projected 1191fps @ 11683psi / Actual 1034fps to me this again highlights why I generally do no use this software.
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January 22, 2022, 11:04 PM | #41 |
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CAUTION: The following post (or a page linked to) includes or discusses loading data not covered by currently published sources of tested data for this cartridge (QuickLOAD or Gordon's Reloading Tool data is not professionally tested). USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assumes any liability for any damage or injury resulting from the use of this information.
I ran QUickload with the option set for finding loads that would get 1050 fps. You did not list OAL, so I left this value at the program default Code:
Cartridge : .44 S&W Special (SAAMI) Bullet : .430, 240, Hornady HP/XTP 44200 Useable Case Capaci: 27.101 grain H2O = 1.760 cm³ Cartridge O.A.L. L6: 1.615 inch = 41.02 mm Barrel Length : 20.0 inch = 508.0 mm Predicted Data for Indicated Charges of the Following Powders. Matching Muzzle Velocity: 1000 fps or 304 m/s These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window. C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand that all of the listed powders can be unsuitable for the given combination of cartridge, bullet and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations. USE ONLY FOR COMPARISON ! 13 loads produced a Loading Ratio below user-defined minimum of 33%. These powders have been skipped. Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time % Grains Gramm fps % psi psi ms --------------------------------- ----------------------------------------------------------------- Accurate 4100 50.5 13.0 0.84 1050 69.1 8920 1031 2.357 Alliant HERCO 43.5 6.8 0.44 1050 100.0 10463 786 2.274 Maxam CSB 4 42.5 6.0 0.39 1050 100.0 15555 577 2.078 !DANGEROUS LOAD-DO NOT USE! Maxam CSB 3 42.9 6.2 0.40 1050 100.0 14621 589 2.099 ! Near Maximum ! Maxam CSB 5 43.2 5.9 0.38 1050 100.0 18048 551 2.020 !DANGEROUS LOAD-DO NOT USE! Accurate No.9 41.7 11.0 0.72 1050 76.9 9369 993 2.299 Lovex D037.2 Heavy Pistol 41.2 11.0 0.72 1050 76.9 9369 993 2.299 Winchester 231 34.2 6.5 0.42 1050 100.0 13659 616 2.130 ! Near Maximum ! Maxam CSB 2 42.0 6.4 0.41 1050 100.0 13497 606 2.137 ! Near Maximum ! Norma R1 49.0 6.2 0.40 1050 100.0 18283 559 2.049 !DANGEROUS LOAD-DO NOT USE! Vihtavuori N340 40.0 6.6 0.43 1050 100.0 11784 684 2.184 Maxam CSB 1 45.1 6.6 0.43 1050 100.0 13604 604 2.123 ! Near Maximum ! Lovex S030 37.7 6.6 0.43 1050 100.0 12138 670 2.187 Vihtavuori N310 39.2 5.7 0.37 1050 100.0 19798 534 2.002 !DANGEROUS LOAD-DO NOT USE! Alliant 2400 46.8 11.1 0.72 1050 72.9 9218 1024 2.380 Vihtavuori N320 41.1 6.0 0.39 1050 100.0 15147 579 2.090 !DANGEROUS LOAD-DO NOT USE! Vihtavuori N330 38.9 6.3 0.41 1050 100.0 12768 627 2.144 Lovex S020 37.6 6.5 0.42 1050 100.0 12084 665 2.174 Lovex S035 44.7 6.9 0.45 1050 100.0 11403 707 2.198 Hodgdon H4227 64.3 14.7 0.95 1050 57.8 9042 984 2.308 Vihtavuori 3N37 38.9 7.5 0.49 1050 99.2 10379 814 2.236 Alliant POWER PISTOL 36.4 7.2 0.47 1050 92.8 9642 920 2.321 Vihtavuori N350 40.7 7.4 0.48 1050 99.4 10525 798 2.223 IMR 4227 63.4 14.5 0.94 1050 58.3 9298 977 2.298 Accurate No.2 39.0 6.5 0.42 1050 100.0 11480 718 2.225 Lovex S040 51.0 11.4 0.74 1050 73.4 9279 988 2.284 Lovex D063 56.2 14.7 0.95 1050 56.4 9444 968 2.290 Ramshot Enforcer 47.4 12.1 0.78 1050 73.3 8494 1055 2.388 Lovex D060 58.0 13.6 0.88 1050 57.8 9761 1019 2.330 Accurate 5744 56.7 13.6 0.88 1050 57.8 9761 1019 2.330 Vihtavuori N105 *C 47.0 9.2 0.60 1050 90.3 8326 985 2.329 Lovex D037.1 36.3 9.8 0.63 1050 83.3 9322 984 2.314 Accurate No.7 36.6 9.8 0.63 1050 83.3 9322 984 2.314 Alliant BLUE DOT 47.3 9.6 0.62 1050 82.6 9440 980 2.319 Vihtavuori 3N38 45.2 9.2 0.60 1050 88.0 9716 933 2.297 Vihtavuori N32C Tin Star 63.1 7.9 0.51 1050 100.0 18471 539 2.038 !DANGEROUS LOAD-DO NOT USE! Alliant BULLSEYE 34.1 5.6 0.37 1050 100.0 11386 706 2.211 IMR TrailBoss 93.9 7.9 0.51 1050 100.0 17116 554 2.057 !DANGEROUS LOAD-DO NOT USE! Vihtavuori N110 *C 59.3 12.6 0.81 1050 71.2 8241 1069 2.378 Lovex S011 36.3 6.2 0.40 1050 100.0 14261 600 2.118 ! Near Maximum ! Accurate Solo 1250 42.6 6.4 0.41 1050 100.0 13343 617 2.128 ! Near Maximum ! Code:
Cartridge : .44 S&W Special (SAAMI) Bullet : .430, 240, Hornady HP/XTP 44200 Useable Case Capaci: 27.101 grain H2O = 1.760 cm³ Cartridge O.A.L. L6: 1.615 inch = 41.02 mm Barrel Length : 20.0 inch = 508.0 mm Powder : Alliant POWER PISTOL Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time % % Grains fps ft.lbs psi psi % ms -28.6 25 5.00 784 327 5724 582 80.6 3.109 -25.7 26 5.20 809 349 6005 612 82.0 3.014 -22.9 27 5.40 834 371 6301 643 83.3 2.926 -20.0 28 5.60 859 393 6611 674 84.6 2.843 -17.1 29 5.80 884 416 6936 705 85.8 2.765 -14.3 30 6.00 908 439 7274 736 86.9 2.691 -11.4 31 6.20 932 463 7627 767 88.0 2.622 -08.6 32 6.40 956 487 7993 797 89.1 2.557 -05.7 33 6.60 979 511 8373 828 90.1 2.495 -02.9 34 6.80 1002 535 8768 858 91.0 2.436 +00.0 35 7.00 1025 560 9176 888 91.9 2.380 +02.9 36 7.20 1048 585 9598 917 92.7 2.326 +05.7 37 7.40 1070 610 10034 946 93.5 2.276 +08.6 38 7.60 1092 636 10484 975 94.2 2.227 +11.4 39 7.80 1114 661 10948 1003 94.9 2.181 +14.3 40 8.00 1136 687 11427 1031 95.5 2.137 Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge Data for burning rate increased by 10% relative to nominal value: +Ba 35 7.00 1075 615 10352 913 96.8 2.212 Data for burning rate decreased by 10% relative to nominal value: -Ba 35 7.00 966 497 8081 835 84.7 2.521 Last edited by P Flados; January 22, 2022 at 11:13 PM. |
January 25, 2022, 04:49 PM | #42 |
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Its a mistake to assume 44 magnum rifles can safely handle more pressure than 44 magnum handguns.
It might vary,case to case, but a SBH,a Raging Bull, a Redhawk,etc may well take more pressure than your lever gun. In part,there is only so much real estate and steel in a lever action.The tube mag layout and receiver size makes for slim barrel contour and small barrelshank. In some cases, a sight dovetail is cut across the lever action barrel just about where pressure will peak. Yes,a good,modern steel 92 clone is pretty strong. But 454 Casull handguns are built in the same revolvers 44 Magnums are built on. 454 Casull pressures exceed what most lever actions are rated . I know,there are 454 Casull lever guns. OK. Convert one of Pancho Villa's carbines or use a toggle link lever action and you may be smiling around gun parts. |
January 25, 2022, 07:15 PM | #43 | |||
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Quote:
Quote:
44 Special has been loaded hot since at least the 1930's. The data is available to guide you towards your velocity goal given careful loading and use in only modern firearms. If you have been in the game as long as you claim you should be able to hit the goal with what you have while preventing someone from using it is some weak top break POS. As I have said I have at least two documented sources to work from. Yes the powder has been reformulated since then....but if you are using Lee#2 data it is just as old and just a repeat of everyone elses published data. Lymans has lots of loads that are as old or older; just look to see if pressure is even listed OR listed in CUP. That is the tell. Quote:
Last edited by SHR970; January 25, 2022 at 07:43 PM. |
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January 25, 2022, 10:48 PM | #44 | |
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Quote:
I was also hoping to see some better velocities in rifles vs pistol, but pressures were strictly related to pushing 44spl above 44spl levels in a 44mag chamber.
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February 1, 2022, 12:08 PM | #45 |
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CAUTION: The following post (or a page linked to) includes or discusses loading data not covered by currently published sources of tested data for this cartridge (QuickLOAD or Gordon's Reloading Tool data is not professionally tested). USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assumes any liability for any damage or injury resulting from the use of this information.
Ok, Final load workup is done! Figured I would compile it for a clean read Henry Big Boy Steel round barrel side gate, 20in barrel in 44mag / 44spl. Goal was a hunting load that was just subsonic. Starline 44spl brass Hornady 240g XTP Power Pistol Powder CCI # 300 Small Pistol Primers Listed Start of 6.6g Listed max of 7.6g Fired 5 rounds at each charge weight 6.6, avg 801, sd 28.38, es 75, hi 846, low 771 7.1, avg 867, sd 38.68, es 94, hi 902, low 808 7.6, avg 939, sd 31.44, es 73, hi 95, low 902 Going above max 8.1, avg 1034, sd 15.37, es 36, hi 1057, low 1021 8.2, avg 1055, sd 51.90, es 132, hi 1101, low 969 8.3, avg 1063, sd 43.67, es 107, hi 1101, low 994 8.4, avg 1095, sd 10.45, es 28, hi 1107, low 1079 8.5, avg 1114, sd 17.71, es 38, hi 1134, low 1086 Not sure what happened in the 8.2 and 8.3 loads with the HIGH es and sd. Same lot of primers, same container of powder. Charges were all weighed, not thrown.
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February 1, 2022, 09:00 PM | #46 |
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Your high velocities track fairly well with the load level changes. The lows may just be where the primer happened to unseat the bullet a little further or the powder was thrown forward in the case (or both).
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February 1, 2022, 10:06 PM | #47 |
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Join Date: March 21, 2012
Location: Indianapolis, IN
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Interesting, the low shot was also the first shot from each string for 8.2 or 8.3. I was thinking possibly chronograph error, not straight over, or due to moving clouds.
Was planning to test 8.1, 8.2. 8.3 for accuracy, then fire 15 of that load over the chronograph to get a final velocity for the load.
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